Patents by Inventor Robert Michael Schelkun

Robert Michael Schelkun has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20040063643
    Abstract: Compounds of formula (I): 1
    Type: Application
    Filed: April 28, 2003
    Publication date: April 1, 2004
    Applicant: Pfizer Inc.
    Inventors: Michael Higginbottom, Suzanne Ross Kesten, Russell Andrew Lewthwaite, Martyn Clive Pritchard, David James Rawson, Robert Michael Schelkun, Po-Wai Yuen
  • Publication number: 20040063789
    Abstract: The instant invention is a series of novel mono- and disubstituted 3-propyl gamma aminobutyric acids of Formula I 1
    Type: Application
    Filed: September 29, 2003
    Publication date: April 1, 2004
    Inventors: Thomas Richard Belliotti, Justin Stephen Bryans, Ihoezo Victor Ekhato, Augustine Tobi Osuma, Robert Michael Schelkun, Jacob Bradley Schwarz, Andrew John Thorpe, Lawrence David Wise, David Juergen Wustrow, Po-Wai Yuen
  • Patent number: 6642398
    Abstract: The instant invention is a series of novel mono- and disubstituted 3-propyl gamma aminobutyric acids of Formula I The compounds are useful as therapeutic agents in the treatment of epilepsy, faintness attacks, hypokinesia, cranial disorders, neurodegenerative disorders, depression, anxiety, panic, pain, neuropathological disorders, arthritis, sleep disorders, IBS, and gastric damage. Methods of preparing the compounds and useful intermediates are also part of the invention.
    Type: Grant
    Filed: December 20, 2002
    Date of Patent: November 4, 2003
    Assignee: Warner-Lambert Company
    Inventors: Thomas Richard Belliotti, Justin Stephen Bryans, Ihoezo Victor Ekhato, Augustine Tobi Osuma, Robert Michael Schelkun, Jacob Bradley Schwarz, Andrew John Thorpe, Lawrence David Wise, David Juergen Wustrow, Po-Wai Yuen
  • Publication number: 20030181523
    Abstract: The instant invention is a series of novel mono- and disubstituted 3-propyl gamma aminobutyric acids of Formula I 1
    Type: Application
    Filed: December 20, 2002
    Publication date: September 25, 2003
    Inventors: Thomas Richard Belliotti, Justin Stephen Bryans, Ihoezo Victor Ekhato, Augustine Tobi Osuma, Robert Michael Schelkun, Jacob Bradley Schwarz, Andrew John Thorpe, Lawrence David Wise, David Juergen Wustrow, Po-Wai Yuen
  • Patent number: 6197771
    Abstract: Novel N-substituted azacycloalkyl ring fused 2,3-quinoxalinediones represented by the formula: or a pharmaceutically acceptable salt thereof, are disclosed, wherein the formula variables R1, R2, X, Y, m and n are as defined herein. Also disclosed are methods of treatment using the same and intermediate compounds useful in the preparation thereof.
    Type: Grant
    Filed: February 7, 2000
    Date of Patent: March 6, 2001
    Assignee: Warner-Lambert Company
    Inventors: Christopher Franklin Bigge, Thomas Charles Malone, Robert Michael Schelkun, Chung Stephen Yi
  • Patent number: 6057313
    Abstract: Novel N-substituted azacycloalkyl ring fused 2,3-quinoxalinediones are disclosed represented by the formula: ##STR1## or a pharmaceutically acceptable salt thereof, wherein R.sup.1 is hydrogen, alkyl or W-alkyl; X and Y are independently hydrogen, halogen, nitro, cyano, trifluoromethyl, SO.sub.2 CF.sub.3, SO.sub.2 R.sup.4, SO.sub.2 NR.sup.4 R.sup.5, alkyl, alkenyl, (CH.sub.2).sub.z CONR.sup.4 R.sup.5, (CH.sub.2).sub.z COOR.sup.4, or NHCOR.sup.4, wherein R.sup.4 and R.sup.5 are independently hydrogen, alkyl having 1 to 6 carbon atoms, cycloalkyl or W-alkyl, and z is an integer from 0 to 4; R.sup.2 is benzoyl, W, W-alkyl, COcycloalkyl, COalkyl-W, CONR.sup.3 alkyl, CONR.sup.3 -W, CONR.sup.3 alkyl-W, CSNR.sup.3 alkyl, CSNR.sup.3 alkyl-W, ##STR2## or a moiety derived from a common amino acid by removal of the --OH from the carboxyl group which is alpha to the amino, wherein --W is aryl, heteroaryl, or the heterocycles piperidinyl, piperazinyl, morpholinyl or pyrrolidinyl, wherein R.sup.
    Type: Grant
    Filed: June 5, 1997
    Date of Patent: May 2, 2000
    Assignee: Warner-Lambert Company
    Inventors: Christopher Franklin Bigge, Thomas Charles Malone, Robert Michael Schelkun, Chung Stephen Yi